diff --git a/bushu.conf b/bushu.conf
index 1a5fa69..1a606ae 100644
--- a/bushu.conf
+++ b/bushu.conf
@@ -37,6 +37,29 @@ NODE_NAME="rk3588"
 NODE_IP="10.250.0.5"
 NODE_EXT_IP="10.250.0.5"
 
+
+# -----------------------
+# 时间同步配置
+# -----------------------
+
+# 是否启用 chrony：true / false
+ENABLE_CHRONY=true
+
+# 是否启用 gPTP：true / false
+ENABLE_GPTP=true
+
+# gPTP 使用的物理网卡
+GPTP_IFACE="eth11"
+
+# chrony 时间服务器
+CHRONY_SERVERS=(
+    "10.250.0.1 iburst prefer"
+    "10.250.0.2 iburst"
+    "10.250.0.3 iburst"
+)
+
+
+
 # -------------------
 # 域名解析列表 (每行一个条目)
 # 格式: "IP hostname1 hostname2 ..."
diff --git a/bushujb.sh b/bushujb.sh
index f7a2b47..e11e430 100644
--- a/bushujb.sh
+++ b/bushujb.sh
@@ -360,28 +360,167 @@ findmnt /var/lib/longhorn
 # -----------------------
 # 时间同步
 # -----------------------
-echo "=== 安装并配置 chrony ==="
-apt update
-apt install -y chrony linuxptp
-cp /etc/chrony/chrony.conf /etc/chrony/chrony.conf.bak 2>/dev/null
-cat > /etc/chrony/chrony.conf << EOF
-server 10.250.0.1 iburst prefer
-server 10.250.0.2 iburst
-server 10.250.0.3 iburst
+echo "=== 时间同步配置 ==="
+
+: "${ENABLE_CHRONY:=true}"
+: "${ENABLE_GPTP:=false}"
+
+if [[ "${ENABLE_CHRONY}" == "true" || "${ENABLE_GPTP}" == "true" ]]; then
+    echo "安装时间同步相关组件..."
+    apt update
+    apt install -y chrony linuxptp
+fi
+
+# ===================================================
+# chrony 配置：由客户选择是否启用
+# ===================================================
+if [[ "${ENABLE_CHRONY}" == "true" ]]; then
+    echo "=== 启用 chrony 时间同步 ==="
+
+    cp /etc/chrony/chrony.conf /etc/chrony/chrony.conf.bak 2>/dev/null || true
+
+    cat > /etc/chrony/chrony.conf << EOF
+# 由 bushu.sh 自动生成
+
+EOF
+
+    for server in "${CHRONY_SERVERS[@]}"; do
+        echo "server ${server}" >> /etc/chrony/chrony.conf
+    done
+
+    cat >> /etc/chrony/chrony.conf << EOF
 
 driftfile /var/lib/chrony/chrony.drift
 makestep 1.0 3
 rtcsync
 logdir /var/log/chrony
 EOF
-systemctl enable chrony
-systemctl restart chrony
-chronyc sources
-chronyc tracking
 
-echo "=== 启动 PTP 同步 ==="
-ptp4l -i $CLOUD_IFACE -m &
-phc2sys -s $CLOUD_IFACE -c CLOCK_REALTIME -m &
+    systemctl enable chrony
+    systemctl restart chrony
+
+    chronyc sources || true
+    chronyc tracking || true
+
+    echo "chrony 已启用"
+else
+    echo "=== 未启用 chrony ==="
+    systemctl disable chrony 2>/dev/null || true
+    systemctl stop chrony 2>/dev/null || true
+fi
+
+# ===================================================
+# gPTP 配置：由客户选择是否启用
+# ===================================================
+if [[ "${ENABLE_GPTP}" == "true" ]]; then
+    echo "=== 启用 gPTP 时间同步 ==="
+
+    : "${GPTP_IFACE:?请在 bushu.conf 中配置 GPTP_IFACE}"
+
+    echo "gPTP 使用物理网卡: ${GPTP_IFACE}"
+
+    mkdir -p /usr/local/bin
+    mkdir -p /etc/linuxptp
+
+    # -----------------------
+    # 创建 gPTP 配置文件
+    # -----------------------
+    cat > /etc/linuxptp/gptp.cfg << EOF
+# 由 bushu.sh 自动生成
+# gPTP / IEEE 802.1AS 配置
+
+[global]
+gmCapable               1
+priority1               248
+priority2               248
+logAnnounceInterval     0
+logSyncInterval         -3
+syncReceiptTimeout      3
+neighborPropDelayThresh 800
+min_neighbor_prop_delay -20000000
+assume_two_step         1
+path_trace_enabled      1
+follow_up_info          1
+transportSpecific       0x1
+ptp_dst_mac             01:80:C2:00:00:0E
+network_transport       L2
+delay_mechanism         P2P
+time_stamping           hardware
+EOF
+
+    # -----------------------
+    # 创建 gPTP 执行脚本
+    # -----------------------
+    cat > /usr/local/bin/start-gptp.sh << 'EOF'
+#!/bin/bash
+set -euo pipefail
+
+GPTP_IFACE="${1:?Usage: start-gptp.sh <interface>}"
+
+echo "gPTP interface: ${GPTP_IFACE}"
+
+# 等待网卡出现
+while ! ip link show "${GPTP_IFACE}" >/dev/null 2>&1; do
+    echo "等待网卡 ${GPTP_IFACE} 出现..."
+    sleep 1
+done
+
+# 启动网卡
+ip link set dev "${GPTP_IFACE}" up
+
+# 检查网卡是否支持硬件时间戳
+if ethtool -T "${GPTP_IFACE}" 2>/dev/null | grep -q "hardware-transmit"; then
+    TS_MODE="hardware"
+else
+    echo "警告：${GPTP_IFACE} 可能不支持硬件时间戳，切换为 software timestamp"
+    TS_MODE="software"
+    sed -i 's/^time_stamping.*/time_stamping           software/' /etc/linuxptp/gptp.cfg
+fi
+
+echo "gPTP timestamp mode: ${TS_MODE}"
+
+# 启动 ptp4l，使用 gPTP 配置
+exec /usr/sbin/ptp4l \
+    -i "${GPTP_IFACE}" \
+    -f /etc/linuxptp/gptp.cfg \
+    -m
+EOF
+
+    chmod +x /usr/local/bin/start-gptp.sh
+
+    # -----------------------
+    # 创建 gPTP systemd 服务
+    # -----------------------
+    cat > /etc/systemd/system/gptp.service << EOF
+[Unit]
+Description=gPTP IEEE 802.1AS Service
+Documentation=man:ptp4l
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+ExecStart=/usr/local/bin/start-gptp.sh ${GPTP_IFACE}
+Restart=always
+RestartSec=5
+User=root
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+    systemctl daemon-reload
+    systemctl enable gptp.service
+    systemctl restart gptp.service
+
+    echo "gPTP 服务已启用"
+    systemctl status gptp.service --no-pager || true
+else
+    echo "=== 未启用 gPTP ==="
+    systemctl disable gptp.service 2>/dev/null || true
+    systemctl stop gptp.service 2>/dev/null || true
+fi
+
 
 # -----------------------
 # 域名解析